kilborn



(No Model.)

A. D. KILBORN.

A LUBRIGATOR. No. 369,250. Patented Aug. 30, 1887,A

UNTTED STATES nTaT Trice.

ALBEN D. KlLBORN, OF OAKLAND, CALlFORNIA.

LU BRICATO R.

SPECIFICATION forming part of Letters Patent No. 369,250, dated August 30, 1887.

Application leil June 9, 188'?.

To all whom t 17mg/ concern:

Bc it known that I, ALBEN D. KiLnonN, of Oakland, in 'the county of Alameda and State of California, have invented certain new and useful Improvements in Lubricators for Steanr Engines; and I do hereby declare that the foilowing is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

This invention relates to certain improve` ments in oil-cups for automatically feeding lubricating material to machinery of various descriptions; but it is particularly designed for feeding two diiierent classes of lubricant to the guides of locomotives; and it has for its objects -to so construct the cup that it cannot be properly charged until the parts are arranged or set for feeding,so as to insure proper work irrespective of any inattention or carelessness on the part of the engineer in charge, as more fully hereinafter described.

The above-mentioned objects are accomplished by the means illustrated in the accompanying drawings, in which Figure l represents a side elevation of my improved lubricating-cup, with a portion in section,showing a part of the adjusting niech-v auisin. Fig. 2 represents a vertical sectional view of my improved cup, taken on line .r :cof

Fig. l; and Fig. 3, a horizontal cross-section taken on the line yy of Fig. 1.

Referring to the drawings, the letter A indicates an outer cylindrical cup or other suitably-shaped casing, having a central perfo rated boss, a, at its bottom, which sets in' a suitable recess in the machinery to be lubricated. The said outer casing or cup is provided with openings at the sides, as indicated by the letters D c, for the purpose hereinafter described, and with a screw-cup, D, on top,

which latter is provided with a central perforated boss, d, having an inward extension, e, the said extension being provided with a female screwthread, g, into which iits the upper male screw-threaded end of a central tube, E, the lower end of which is also externally screw-threaded for the reception of a female screw-threaded plate, G, having a central perforated boss, h.

The letter F indicates a glass cup, which has a central opening, Ai, at its bottom, through which the tube E, before mentioned, passes. The said cup is provided with a ilange, k, at its bottom edge, between which and the plate G is secured a washer, j, which may be tightly clamped, so as to prevent any leakage from the glass cup. The tube E is provided with openings m near its lower end, through which the oil passes from the interior of the glass cup to the valve-opening a in the central boss of the plate G.

The boss et on the lower end of the casing has a central bore, h', the upper end of which is countersunk. A stem, H, tits looselyin the bore 7L', and is prevented from falling out by the pin h2, which passes through it, and which engages with the countersunk part of thebore 7L. The stem H extends slightly below the boss a., and also extends a short distance into the interior of the cup or casing A. The lower part of the stem H, coming in contact with a revolving or sliding body, will become heated by friction, and thus melt the thick oil or tallow that is in the cup or casing A. It also serves to prevent the oils from feeding too freely. The stem of the plug-Valve p extends up through the tube E, and through the central extension, e, on the boss of the serewcap D, and is surrounded by a spiral spring, I, in the central tube, E, which keeps the valve normally pressed toward its seat.

The letter K indicates a sleeve fitting within the extension of the central boss of the screwcap D and around the stem of the plug-valve p. The said sleeve K is longitudinally slotted on diametrically-opposite sides, so as to engage-the ends of a pin, S, passing through the valve-stem. The said sleeve K is provided on its upper end with a head, t, and with lat-- eral arms a, the head having-a tapering re cess in it, in which is adapted to turn the tapering plug c, which is screw-threaded internally and engages the upper screw-threaded end of the rod or stern of the plug-valve p, before mentioned. The said plug o has a milled Wheel, fw, at its upper end, by which it may be readily turned.

'The central boss, d, of the screw-cap D of IOO the casing or outer cup is provided with filling-openings a, through which the internal cup may be filled, and the lateral arms on the head t are' so arranged' that they will rest over saidopenings except when the valve is set for feeding, so as to prevent the filling of the inner cup unless the valve is so set. One ofthe lateral arms is provided with a vertical opening, 1n which is inserted a pin, b, which eX- tends only partly through, leaving a recess below, which fits over a similar pin, c', secured to the central boss, d, of the screw-cap when the valve is set for feeding. The nin bserves as an 1ndicator to enable the operator to determine which of the lateral arms is recessed to t over the pin c.

To set the valve for feeding, the parts are brought to the position shown in Fig. l. Thick or heavy oil is then poured into the outer casing through one of the lower windows and thin or light oil into the inner cup through the feedopenings in the central boss of the cap. The amount orn the oil fed may then be regulated by turning the plug o, which raises or depresses the plug-valve.

As constructed, it is evident that the engineer, 1n order to Charge his cup, is compelled to set the valve for feeding, and hence is o bliged to have it always in operating condition, so that no accidents can result from negligence or carelessness.

Having thus described my invention, what I [elaim,and desire to secure by Letters Patent, 1s-

1. In an automatic lubricating-cup, the coinbination, with the outer casing or cup and the inner cup, of the plug valve and sleeve surrounding the valve-stem, the perforated screwcap, the sleeve K, provided with a head, t, and with lateral arms, and the internally-screwthreaded plug o, substantially as specified.

2. The combination, with the outer casing or cup and the inner cup, of the plug-valve, the central tube, E, a spring surrounding the valve-stem, the plate G, washer j, the screw cap D, having a central boss, the slotted sleeve K, provided with a recessed head and lateral arms, and the pin on the boss of the screwcap, adapted to engage with a recess in one of the arms, substantially as and for the pose specified.

3. The combination, with the outer casing or cup, of the perforated screw-cap D, with its boss d, extension e, and pin c', the inner cup, the cent-ral tube, E, the plate G, whereby the said inner cup is suspended in the outer casing or cup, the regulating plug-valve, the slotted sleeve, through which the valve-stem audits pin s pass, recessed head t, having the regulating-plug n, and the lateral arms u, one of said arms being recessed to receive the pin c', substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

pur-

ALDEN D. KILBORN.'

Vitnessesr T. B. MARSHALL, E. l?. MOODY. 

